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arXiv · 2112.12135

Top-pair production at the LHC with MiNNLO$_{\rm PS}$

Javier Mazzitelli·Pier Francesco Monni·Paolo Nason·Emanuele Re·Marius Wiesemann·Giulia Zanderighi
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Abstract

We consider the production of a pair of heavy quarks and illustrate the derivation of the MiNNLO method to match next-to-next-to-leading order calculations with parton showers (NNLO+PS) for this class of processes. As a first application, we construct an event generator for the fully differential simulation of hadronic top-quark pair production at NNLO+PS and discuss all details of its implementation in a parton shower Monte Carlo framework. We present new phenomenological results for the Large Hadron Collider obtained by including the tree-level decays of the top quarks, while accounting for spin-correlation effects. A comprehensive comparison to LHC measurements shows an excellent description of experimental data across multiple hadronic and leptonic particle-level observables. The computer code is available for download within the POWHEG-BOX.

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Javier Mazzitelli, Pier Francesco Monni, Paolo Nason, Emanuele Re, Marius Wiesemann, Giulia Zanderighi. 2021-12-22. Top-pair production at the LHC with MiNNLO$_{\rm PS}$. https://doi.org/10.1007/jhep04(2022)079

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